If your destination is east of Village Center Drive (shown in blue), use Yorba Linda Boulevard/Weir Canyon Road from the Riverside Freeway to get to and from your destination. If your destination is west of Village Center, use Imperial Highway to the greatest extent possible to get to and from your destination.
If you have recurrent mouth ulcers, they may be caused by an underlying medical condition, such as those outlined below. 1  Vitamin B12 deficiency: vitamin B12 helps to make red blood cells and keeps your body's nervous system healthy. 2  A lack of vitamin B12 can cause tiredness, shortness of breath and mouth ulcers.
A mouth ulcer is the loss or erosion of the delicate lining tissue of the mouth (mucus membrane). The most common cause is mechanical injury, such as accidentally biting your cheek. In most cases, mouth ulcers are harmless and resolve by themselves in a few days without the need for medical treatment.